markup/latex: setup background color

wiki/discord.md

@@ -12,7 +12,7 @@ There are some alernative frontends and modifications available for Discord.
 - [BetterDiscord](/wiki/betterdiscord.md) is a modification for Discord on
   [Linux-based systems](/wiki/linux.md), which changes an existing installation of Discord.
   It supports a wide range of plugins and themes.
-- [Vesktop](https://github.com/Vencord/Vesktop) is a standalone custom Discord App.
+- [Vencord](/wiki/vencord.md) is a standalone custom Discord App.
   It supports a wide range of plugins and themes.
 - [Revenge](https://github.com/revenge/revenge-manager) is a standalone client modification of
   Discord for [Android](/wiki/android.md).

wiki/gimp.md

@@ -0,0 +1,20 @@
+# GIMP
+
+[GIMP](https://www.gimp.org/) is a popular cross-platform program for editing pictures.
+
+## Setup
+
+The GIMP program can be installed from files found on
+[the official website](https://www.gimp.org/downloads/).
+Alternatively many [Linux](/wiki/linux.md) [package managers](/wiki/linux/package_manager.md) 
+package GIMP in the `gimp` package.
+
+## Usage
+
+This section addresses the usage of GIMP.
+
+### Scale Image
+
+An image that is already loaded into GIMP can easily be scaled down (or up) by selecting
+`Scale Image` under the `Image` tab.
+Alternatively the scale tool reachable via `Ctrl+S` can be used.

wiki/image.md

@@ -15,7 +15,7 @@ This entry also features medicinal image and visual formats such as DICOM.
 
 Editing images can be done by various image manipulation software.
 
-- [GIMP](https://www.gimp.org/) is a popular cross-platform program for editing pictures.
+- [GIMP](/wiki/gimp.md) is a popular cross-platform program for editing pictures.
 - [ImageMagick](/wiki/imagemagick.md) is another cross-platform software suite for creating and
 - editing (raster) images.
 - [upscayl](https://github.com/upscayl/upscayl) is an upscaler that can be used cross-platform.

wiki/linux/nvidia.md

@@ -32,3 +32,19 @@ In `nvidia-settings` under
 `X Server Display Configuration` select your display and click on `Advanced`
 and select either `Force Composition Timeline` or
 `Force Full Composition Timeline`.
+
+### Pascal-GPUs and New Drivers
+
+On some operating systems like [Arch Linux](/wiki/linux/arch-linux.md) the newer versions of
+drivers are not compatible with Pascal GPUs anymore as explained in
+[the german Arch forum](https://www.archlinux.de/news/35689-Nvidia-Treiber-ab-Version-590-stellen-den-Support-fuer-Pascal-GPUs-ein).
+This is due to the drop of support for these cards from Nvidias site.
+If Pascal-GPUs are still used some minor changes need to be performed and some packets need to be
+replaced.
+On Arch Linux-based systems this can be achieved by replacing the packages `nvidia-open` and
+`nvidia-open-utils` with `nvidia-580xx-dkms`, `nvidia-580xx-utils` and  `lib32-nvidia-580xx-utils`.
+If upgrading from a Pascal-GPU to a newer version this change needs to be undone.
+
+After the packages are changed it is important to
+[rebuild the initial ramdisk](/wiki/linux/mkinitcpio.md#manually-generate-initial-ramdisk) and
+reboot the system.

wiki/linux/package_manager/pacman_and_aur.md

@@ -335,3 +335,16 @@ To update the package either way the following command can be used.
 ```sh
 sudo pacman -S --overwrite "*" <package name>
 ```
+
+### Error `error: could not open file /var/lib/pacman/sync/core.db: Unrecognized archive format`
+
+If the error `error: could not open file /var/lib/pacman/sync/core.db: Unrecognized archive format`
+or a similar one with another database file is thrown it can mostly be easily fixed by removing the
+database file with the following command.
+
+```txt 
+rm -rf /var/lib/pacman/sync/*
+```
+
+Alternatively - and this is probably a bit safer - the files can be temporarily be moved somewhere
+else and removed after confirming the error was fixed.

wiki/linux/suckless.md

@@ -8,6 +8,9 @@ Notable works of Suckless are the following.
 - [ii](https://tools.suckless.org/ii/) is an IRC client
 - [slock](https://tools.suckless.org/slock/) is a screen locker
 - [st](https://st.suckless.org/) is a [terminal](/wiki/linux/system_console.md)
+- [dwl](https://codeberg.org/dwl/dwl) is a window manager similar to dwm that can be used on
+  [Wayland](/wiki/linux/wayland.md) systems.
+  For the IPC-patch [dwlmsg](https://codeberg.org/notchoc/dwlmsg) can also be used.
 
 Additionally to this Suckless maintains a list of free and open-source software that is endorsed by
 Suckless.

wiki/markup_language.md

@@ -40,3 +40,20 @@ The following list contains some examples of it.
 
 - [ZUGFeRD](https://ctan.org/pkg/zugferd) is a package for creating invoices.
 - [Awesome-CV](https://github.com/posquit0/Awesome-CV) is a package for creating job applications.
+
+#### Usage
+
+This section addresses the usage of LaTeX.
+
+##### Set Background Color
+
+The background color can be set using the `xcolor` package and the `\pagecolor` command.
+The following lines show a working example where the background color is set to the hexadecimal
+color `<hexcol>`.
+This needs to be changed (for example to `E0D6C0` for a parchment like color).
+
+```tex
+\usepackage{xcolor}
+\definecolor{background}{HTML}{<hexcol>}
+\pagecolor{background}
+```

wiki/vencord.md

@@ -0,0 +1,24 @@
+# Vencord
+
+[Vencord](https://vencord.dev/) is an unofficial [Discord](/wiki/discord.md) client mod which
+allows the user to add various functionality through plugins and new themes.
+Unlike [BetterDiscord](/wiki/betterdiscord.md) it is a standalone client and does not need the
+official Discord client installed.
+
+## Setup
+
+The Vencord program can be installed using files from
+[the official website](https://vencord.dev/download/).
+Alternatively many [Linux](/wiki/linux.md) [package managers](/wiki/linux/package_manager.md) 
+package Vesktop in the `vesktop` (or `vesktop-git` and `vesktop-bin`) package.
+
+## Usage
+
+This section addresses the usage of Vesktop.
+
+### Useful plugins
+
+The following is a list of useful plugins for Vesktop.
+
+- [PinDMs](https://vencord.dev/plugins/PinDMs) is a plugin that allows to pin private channels to
+  the top of the list of direct messages